o2 sensor alarm

Asked by Sep 18, 2016 at 07:40 PM about the 2004 Chevrolet Cavalier

Question type: General

I have a 2004 cavalier. The check engine light comes on for a day or two and
then goes off for a day or two. The scan tool says it is a bad o2 sensor. When
I put the tool in live data mode the sensor has a reading of .1 to .9, which I
was told is a normal reading.  Any thougths on what the problem may be?

4 Answers

232,715

What is the 4 digit code? something else can be triggering the O2 code to detect a lean or rich condition.

3 out of 3 people think this is helpful.

I did not see 4 digit code. Will hook the scan tool back up and see what the code is.

305

what do u do if it says lean condition mine is p0171

I hooked the scan tool back up and the code said P0130. However the check engine light had already gone off. Keeping the tool in the car so it the light comes back on I can check it again.

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